[reactos] 01/01: [SHELL32] Follow-up of #2432

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=0903c645a27e6ac55f580…

commit 0903c645a27e6ac55f58068fa74183fb67512355
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Thu Apr 9 08:19:47 2020 +0900
Commit:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
CommitDate: Thu Apr 9 08:19:47 2020 +0900

    [SHELL32] Follow-up of #2432
    
    Fixed hang of FireFox.
---
 dll/win32/shell32/shelldesktop/CChangeNotify.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dll/win32/shell32/shelldesktop/CChangeNotify.cpp
b/dll/win32/shell32/shelldesktop/CChangeNotify.cpp
index 83cb010eac7..8048a847ad6 100644
--- a/dll/win32/shell32/shelldesktop/CChangeNotify.cpp
+++ b/dll/win32/shell32/shelldesktop/CChangeNotify.cpp
@@ -7,7 +7,6 @@
 #include "shelldesktop.h"
 #include "shlwapi_undoc.h"
 #include <atlsimpcoll.h>
-#include <assert.h>
 
 WINE_DEFAULT_DEBUG_CHANNEL(shcn);
 
@@ -295,7 +294,8 @@ CWorker::WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
lParam)
 
 BOOL CWorker::CreateWorker(HWND hwndParent, DWORD dwExStyle, DWORD dwStyle)
 {
-    assert(m_hWnd == NULL);
+    if (::IsWindow(m_hWnd))
+        ::DestroyWindow(m_hWnd);
     m_hWnd = SHCreateWorkerWindowW(WindowProc, hwndParent, dwExStyle, dwStyle,
                                    NULL, (LONG_PTR)this);
     return m_hWnd != NULL;